I ought to burn you ought to burn he ought to burn we ought to burn you ought to burn they ought to burn
V-ing form
I ought to be burning you ought to be burning he ought to be burning we ought to be burning you ought to be burning they ought to be burning
Perfect
I ought to have burned you ought to have burned he ought to have burned we ought to have burned you ought to have burned they ought to have burned
V-ing perfect
I ought to have been burning you ought to have been burning he ought to have been burning we ought to have been burning you ought to have been burning they ought to have been burning
Negation
Simple form
I oughtn't to burn you oughtn't to burn he oughtn't to burn we oughtn't to burn you oughtn't to burn they oughtn't to burn
V-ing form
I oughtn't to be burning you oughtn't to be burning he oughtn't to be burning we oughtn't to be burning you oughtn't to be burning they oughtn't to be burning
Perfect
I oughtn't to have burned you oughtn't to have burned he oughtn't to have burned we oughtn't to have burned you oughtn't to have burned they oughtn't to have burned
V-ing perfect
I oughtn't to have been burning you oughtn't to have been burning he oughtn't to have been burning we oughtn't to have been burning you oughtn't to have been burning they oughtn't to have been burning
Interrogative form
Simple form
ought to I burn? ought to you burn? ought to he burn? ought to we burn? ought to you burn? ought to they burn?
V-ing form
ought to I be burning? ought to you be burning? ought to he be burning? ought to we be burning? ought to you be burning? ought to they be burning?
Perfect
ought to I have burned? ought to you have burned? ought to he have burned? ought to we have burned? ought to you have burned? ought to they have burned?
V-ing perfect
ought to I have been burning? ought to you have been burning? ought to he have been burning? ought to we have been burning? ought to you have been burning? ought to they have been burning?
Interro-negative form
Simple form
oughtn't I to burn? oughtn't you to burn? oughtn't he to burn? oughtn't we to burn? oughtn't you to burn? oughtn't they to burn?
V-ing form
oughtn't I to be burning? oughtn't you to be burning? oughtn't he to be burning? oughtn't we to be burning? oughtn't you to be burning? oughtn't they to be burning?
Perfect
oughtn't I to have burned? oughtn't you to have burned? oughtn't he to have burned? oughtn't we to have burned? oughtn't you to have burned? oughtn't they to have burned?
V-ing perfect
oughtn't I to have been burning? oughtn't you to have been burning? oughtn't he to have been burning? oughtn't we to have been burning? oughtn't you to have been burning? oughtn't they to have been burning?